Hardcode awscli and s3cmd to the latest version to allow tagging

Dockerfile

@@ -6,7 +6,7 @@ RUN apk -v --update add \
         less \
         mailcap \
         && \
-    pip install --upgrade awscli s3cmd python-magic && \
+    pip install --upgrade awscli==1.11.188 s3cmd==2.0.1 python-magic && \
     apk -v --purge del py-pip && \
     rm /var/cache/apk/*
 VOLUME /root/.aws

awscli-latest.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+docker run --rm python:alpine pip search awscli | grep "^awscli " | sed "s/awscli (\(.*\)).*/\1/"

s3cmd-latest.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+docker run --rm python:alpine pip search s3cmd | grep "^s3cmd " | sed "s/s3cmd (\(.*\)).*/\1/"